A Open-Label Study Of CP-690,550 As Long-Term Therapy (48 Weeks) In Subjects With Crohn's Disease

This study has been completed.

Sponsor:

Pfizer

ClinicalTrials.gov Identifier:

NCT01470599

First Posted: November 11, 2011

Last Update Posted: October 16, 2017

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government.
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Pre-specified cardiovascular events were adjudicated by committees of external experts who were blinded to treatment assignment. Potential events of interest (pEoI) were identified by the investigator, sponsor, review of alerts from central electrocardiogram assessments, and by search of adverse events (AE)/serious adverse event (SAE) listings for events coded to death (coronary and non-coronary), myocardial infarction (non-fatal), all coronary revascularization, unstable angina, stroke (fatal and non-fatal), transient ischemic attack, congestive heart failure, peripheral arterial vascular disease, dyspnoea, and chest pain. The independent reviewers (IRs) determined if the pEoI met the criteria for EoI classification according to the definitions summarized from the Clinical Data Interchange Standards Consortium 'Standardized Definitions for End Point Events in Cardiovascular Trials' published October 2010.

Pre-specified malignancy events were adjudicated by committees of external experts who were blinded to treatment assignment. pEoI were identified by the investigator, sponsor, potential primary event notifications (i.e. malignancies excluding non-melanoma skin cancers) for a specific protocol, events submitted for histopathology review for potential malignancies which met the criteria for potential malignancies, and by search of AE/SAE listings for events coded to Malignant tumors Standard Medical Dictionary for Regulatory Activities (MedDRA) Queries (SMQ) (20000194). IRs determined if the pEoI met the criteria for EoI classification according to the International Classification of Diseases for Oncology, a ten-digit multi-axial classification of the site (4 characters), morphology (4 digits), behavior (1 digit), and grading (1 digit) of neoplasms.

Pre-specified GI perforation events were adjudicated by committees of external experts who were blinded to treatment assignment. The pEoI were identified via search of AE/SAE listings using the MedDRA GI Perforation SMQ. The IRs determined if the pEoI met the criteria for EoI classification based on whether a GI perforation occurred and if yes, the location within the GI tract, possible contributing medical conditions and/or concomitant medications.

Pre-specified ILD events were adjudicated by committees of external experts who were blinded to treatment assignment. pEoI were identified by searches of the clinical, safety & laboratory databases (AEs coded to the MedDRA ILD SMQ and events nominated by the study clinician or clinical lead). The IRs determined if the pEoI met the criteria for EoI classification by assessment of the ILD event (probably ILD, possible ILD, alternative diagnosis likely, other or insufficient information to classify).

CDAI is a composite index consisting of weighted scoring of 8 disease variables: number of liquid or very soft stools, intensity of abdominal pain, general well-being, occurrence of extraintestinal symptoms, need for antidiarrheal drugs, presence of abdominal masses, hematocrit, and body weight. CDAI scores range from 0 to approximately 600 points, higher score indicates higher disease activity. Clinical remission was defined as a CDAI score of less than (<) 150. Sustained clinical remission was defined as being in clinical remission (CDAI score <150) at both Week 24 and Week 48. 95 percent (%) Clopper-Pearson exact confidence interval reported for the proportions. n = number of participants with non-missing data.

Percentage of Participants in Clinical Remission and Sustained Clinical Remission Among Participants in Clinical Remission at Baseline of This Study [ Time Frame: Baseline and Weeks 8, 16, 24, 36, 48 and 52/follow-up ]

CDAI is a composite index consisting of weighted scoring of 8 disease variables: number of liquid or very soft stools, intensity of abdominal pain, general well-being, occurrence of extraintestinal symptoms, need for antidiarrheal drugs, presence of abdominal masses, hematocrit, and body weight. CDAI scores range from 0 to approximately 600 points, higher score indicates higher disease activity. Clinical remission was defined as a CDAI score of <150. Sustained clinical remission was defined as being in clinical remission (CDAI score <150) at both Week 24 and Week 48. 95% Clopper-Pearson exact confidence interval reported for the proportions. n = number of participants with non-missing data.

Percentage of Participants in Clinical Remission and Sustained Clinical Remission Among Participants in Clinical Response (CDAI-100 Response) or Clinical Remission at Baseline of This Study [ Time Frame: Baseline and Weeks 8, 16, 24, 36, 48 and 52/follow-up ]

CDAI is a composite index consisting of weighted scoring of 8 disease variables: number of liquid or very soft stools, intensity of abdominal pain, general well-being, occurrence of extraintestinal symptoms, need for antidiarrheal drugs, presence of abdominal masses, hematocrit, and body weight. CDAI scores range from 0 to approximately 600 points, higher score indicates higher disease activity. Clinical remission was defined as a CDAI score of <150. Sustained clinical remission was defined as being in clinical remission (CDAI score <150) at both Week 24 and Week 48. Clinical response was defined as a CDAI score reduction of at least 100 points from the A3921083 study baseline value. 95% Clopper-Pearson exact confidence interval reported for the proportions. n = number of participants with non-missing data.

Time to Relapse Among Participants in Clinical Remission at Baseline [ Time Frame: From baseline to Week 52 ]

Relapse was defined as an increase in CDAI of more than (>) 100 points from the baseline and an absolute CDAI score of >220 points. CDAI is a composite index consisting of weighted scoring of 8 disease variables: number of liquid or very soft stools, intensity of abdominal pain, general well-being, occurrence of extraintestinal symptoms, need for antidiarrheal drugs, presence of abdominal masses, hematocrit, and body weight. CDAI scores range from 0 to approximately 600 points, higher score indicates higher disease activity. Data presented are rates estimated from Kaplan-Meier curves.

There was a single study treatment dose adjustment allowed, at the discretion of the Investigator, from 5 mg BID to 10 mg BID or from 10 mg BID to 5 mg BID, after the initial 8 weeks of fixed open label treatment and for the remaining treatment period of 40 weeks. Percentage of participants whose study treatment were switched from 5 mg BID to 10 mg BID or 10 mg BID to 5 mg BID after initial assignment was reported.

Fecal calprotectin is an inflammatory marker for the gastrointestinal tract and considered as a measurement of neutrophil migration to the gastrointestinal tract. Higher values indicate more serious inflammation. n = number of participants with non-missing data.

The test for CRP is a laboratory measurement for evaluation of an acute phase reactant of inflammation through the use of an ultrasensitive assay. A decrease in the level of CRP indicates reduction in inflammation and therefore improvement. n = number of participants with non-missing data.

The IBDQ is a psychometrically validated patient reported outcome (PRO) instrument for measuring disease-specific quality of life (QoL) in participants with inflammatory bowel disease (IBD). IBDQ consists of 32 items, each item score ranged from 1 (worst possible response) to 7 (best possible response). The 32 items are grouped into 4 domains: bowel function, emotional status, systemic symptoms and social function. The 4 domains are scored as follows: bowel symptoms 10 to 70; systemic symptoms 5 to 35; emotional function 12 to 84; social function 5 to 35. For each domain, a higher score indicates better QoL. Total score is the sum of each item score, and ranged from 32 to 224 with a higher score indicating a better QoL. Positive change in total score indicated improvement in QoL. n = number of participants with non-missing data.

The IBDQ is a psychometrically validated PRO instrument for measuring disease-specific QoL in participants with IBD. IBDQ consists of 32 items, each item score ranged from 1 (worst possible response) to 7 (best possible response). The 32 items are grouped into 4 domains: bowel function, emotional status, systemic symptoms and social function. The 4 domains are scored as follows: bowel symptoms 10 to 70; systemic symptoms 5 to 35; emotional function 12 to 84; social function 5 to 35. For each domain, a higher score indicates better QoL. Total score is the sum of each item score, and ranged from 32 to 224 with a higher score indicating a better QoL. Positive change in total score indicated improvement in QoL.

Percentage of Participants With an IBDQ Total Score of Greater Than or Equal to (≥) 170 at Week 48/ET Visit [ Time Frame: Week 48/ET ]

The IBDQ is a psychometrically validated PRO instrument for measuring disease-specific QoL in participants with IBD. IBDQ consists of 32 items, each item score ranged from 1 (worst possible response) to 7 (best possible response). Total score is the sum of each item score, and ranged from 32 to 224 with a higher score indicating a better QoL. A score ≥170 corresponds to clinical remission. 95% Clopper-Pearson exact confidence interval reported for the proportions.

Percentage of Participants With a Response to the Patient-Reported Treatment Impact (PRTI) Assessment at Week 48/ET Visit by Category [ Time Frame: Week 48/ET visit ]

The IBD PRTI modified questionnaire comprises 3 individual questions administered to the participant: participant satisfaction with study treatment; participant preference for study drug over prior treatment (this question on participant preference for study drug is prefaced by a simple question of previous treatment/s for IBD received in order to place the preference question into context) and participant willingness to reuse the study treatment again. Each of these questions (except the question on previous treatment, which is informational only) is scored on a 5 point Likert scale. PSA = Patient Satisfaction Assessment; PPTA = Patient Previous Treatment Assessment; PPA = Patient Preference Assessment; PWA = Patient Willingness Assessment.

The component and domain scores were scored using the United States (US) 1998 general population norms. The resulting norm-based T scores for both the SF36 version 2 and SF36 health domain scales and component summary measures have means of 50 and standard deviations of 10. Higher scores indicate better health-related QoL. n = number of participants with non-missing data.

The component and domain scores were scored using the US 1998 general population norms. The resulting norm-based T scores for both the SF36 version 2 and SF36 health domain scales and component summary measures have means of 50 and standard deviations of 10. Higher scores indicate better health-related QoL. n = number of participants with non-missing data.

EQ5D is a participant rated questionnaire to assess health-related QoL in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, selfcare, usual activities, pain and discomfort, and anxiety and depression; 1 indicates better health state (no problems); 3 indicates worst health state ("confined to bed"). Scoring formula developed by EuroQol Group assigns a utility value for each domain in the profile. Score is transformed and results in a total score range from 0.594 to 1.000; a higher score indicates a better health state. n = number of participants with non-missing data.

EQ5D is a participant rated questionnaire to assess health-related QoL in terms of a single utility score. Health State Profile component assesses level of current health for 5 domains: mobility, selfcare, usual activities, pain and discomfort, and anxiety and depression; 1 indicates better health state (no problems); 3 indicates worst health state ("confined to bed"). Scoring formula developed by EuroQol Group assigns a utility value for each domain in the profile. Score is transformed and results in a total score range from 0.594 to 1.000; a higher score indicates a better health state.

The median time to relapse among subjects in clinical remission at baseline. Relapse is defined as increase in CDAI of >100 points from the baseline and an absolute CDAI score of >220 points. [ Time Frame: WEEK 48 ]

CDAI scores over time and change from baseline in CDAI scores. [ Time Frame: WEEK 48 ]

The proportion of subjects achieving a steroid-free clinical remission at Week 48 among subjects on steroids at baseline. [ Time Frame: WEEK 48 ]

Corticosteroid use over time. [ Time Frame: WEEK 48 ]

Serum CRP and fecal calprotectin over time and change from baseline in CRP and fecal calprotectin. [ Time Frame: WEEK 48 ]

Current Other Outcome Measures ICMJE

Not Provided

Original Other Outcome Measures ICMJE

Not Provided

Descriptive Information

Brief Title ICMJE

A Open-Label Study Of CP-690,550 As Long-Term Therapy (48 Weeks) In Subjects With Crohn's Disease

Official Title ICMJE

A Open-Label Extension Study Of CP-690,550 As Maintenance Therapy In Patients With Crohn's Disease

Brief Summary

The study hypothesis is to establish the safety and tolerability of long-term open-label (OL) CP-690,550 therapy in subjects with Crohn's disease.

* Includes publications given by the data provider as well as publications
identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.

Recruitment Information

Recruitment Status ICMJE

Completed

Enrollment ICMJE

150

Completion Date

July 2016

Primary Completion Date

July 2016 (Final data collection date for primary outcome measure)

Eligibility Criteria ICMJE

Inclusion Criteria:

Subjects who complete 26-week maintenance treatment of the A3921084 study or subjects who withdraw early due to A3921084 study treatment failure (see Appendix 5).

Women of childbearing potential must test negative for pregnancy prior to study enrolment.

Sexually active females of childbearing potential are required to use adequate contraceptive methods during the study period and until completion of the follow-up procedures. No specific contraceptive measures are required in male subjects during study participation.

Exclusion Criteria:

Subjects who have been discontinued due to protocol violation(s) (as determined by the Sponsor) in the A3921084 study.

Subjects who were discontinued from the A3921084 study due to an adverse event.

Subjects likely to require any non-elective surgery or surgery requiring overnight stay (with the exception of minor same day outpatient procedures that will not interfere with study drug dosing).

Sex/Gender

Sexes Eligible for Study:

All

Ages

18 Years to 76 Years (Adult, Senior)

Accepts Healthy Volunteers

No

Contacts ICMJE

Contact information is only displayed when the study is recruiting subjects